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2 Commits

Author SHA1 Message Date
Jian Luo 7b5c349890 x86: bios: Synchronize stack between real and protected mode 
PCI option rom may use different SS during its execution, so it is not
safe to assume esp pointed to the same location in the protected mode.

Signed-off-by: Jian Luo <jian.luo4@boschrexroth.de>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
 2015-07-14 18:03:18 -06:00
Simon Glass 0ca2426bea x86: Add support for running option ROMs natively 
On x86 machines we can use an emulator to run option ROMS as with other
architectures. But with some additional effort (mostly due to the 16-bit
nature of option ROMs) we can run them natively. Add support for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2014-11-25 06:38:57 -07:00